Anti-derailment rail wheel of travelling crane lifting device
By designing an automatic centering structure and lubrication device with a conical body that contacts the rail on the overhead crane lifting device's track wheel, the problem of the track wheel deviating from the center line was solved, achieving automatic adjustment and lubrication effects, and improving operational stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- COSPERT INTELLIGENT EQUIP (SUZHOU) CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional crane lifting devices are prone to deviation from the centerline due to track unevenness and external interference when running on the track, increasing the risk of derailment. They are also difficult to automatically adjust back to the center position, affecting normal operation.
The design incorporates a tapered body that contacts the track, combined with elastic blocks to absorb vibrations and impacts, ensuring automatic wheel alignment and maintaining good lubrication through a lubrication device to reduce friction and wear.
It improves the operational stability and service life of the track wheels, reduces the risk of derailment through automatic centering and lubrication, and enhances cushioning performance and lubrication effect.
Smart Images
Figure CN224185725U_ABST
Abstract
Description
A type of anti-derailment crane lifting device with track wheels Technical Field
[0001] This utility model relates to the field of track wheel technology, and in particular to a track wheel for a crane lifting device that prevents derailment. Background Technology
[0002] In modern industry and transportation, the track wheels of crane lifting devices are key load-bearing and operating components, and their performance directly affects the safety and reliability of the entire system. With the development of industrial automation and high-speed transportation, the working conditions faced by track wheels during operation are becoming increasingly complex, including high-speed operation, heavy load bearing, and complex and ever-changing track environments.
[0003] Traditional anti-derailment track wheels for trolley lifting devices are susceptible to derailment due to track irregularities and external interference. This can cause the wheels to deviate from the track centerline, and the wheels are difficult to automatically adjust back to the center position after derailment, thus increasing the risk of derailment and affecting normal operation. Therefore, those skilled in the art have provided an anti-derailment track wheel for trolley lifting devices to solve the problems mentioned in the background art. Summary of the Invention
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a track wheel for a crane lifting device that prevents derailment. The tread surface enables the wheel to automatically center itself when running on the track, reducing the risk of derailment caused by uneven track or external interference. Furthermore, the wheel can automatically adjust back to the center position if it deviates from the track centerline.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a track wheel for a crane lifting device to prevent derailment, comprising a wheel body and multiple wheel teeth, wherein the multiple wheel teeth are arranged in a rectangular pattern at the center of the outer side of the wheel body, a tread body is provided at the center of both sides of the wheel body, and a lubrication device is provided at the outer side of the center of both sides of the wheel body;
[0006] The tread body includes a cone-shaped body, which is disposed at the center of one side wall of the wheel body, and an elastic block is filled in the center of the inside of the cone-shaped body;
[0007] Through the above technical solution, the conical body contacts the track, and its conical shape ensures that the wheel can automatically center itself when running on the track, reducing the risk of derailment caused by track irregularities or external interference. Furthermore, if the wheel deviates from the track centerline, it can automatically adjust back to the center position. The elastic block can absorb vibrations and impacts during operation, improving the wheel's buffering performance. When the wheel is subjected to external impacts or vibrations, the elastic block will undergo elastic deformation to absorb and disperse energy, reducing the impact on the overall structure, thereby improving its operational stability.
[0008] Furthermore, the cone is made of high-strength alloy steel, and the elastic block is made of polyurethane;
[0009] The above technical solution uses high-strength alloy steel as the material for the cone, giving it excellent mechanical properties and ensuring that the cone will not deform or be damaged when subjected to huge pressure and impact.
[0010] Furthermore, the lubrication device includes a retaining ring, which is located on the outer side of the center of one side wall of the wheel body. An oil injection nozzle is provided at the center of the upper end face of the retaining ring, and multiple oil outlets are arranged in a circular pattern on the upper side of the center of one inner side wall of the retaining ring.
[0011] Through the above technical solution, the workers deliver lubricant to the inside of the fixing ring through the grease nipple, and then export the lubricant to the outer surface of the tread through the oil outlet. This ensures that the contact surface between the wheel and the track is lubricated, maintains a good lubrication condition between the wheel and the track, reduces friction and wear, and extends the service life of the track wheel.
[0012] Furthermore, the oil nozzle output end passes through the outer wall of the fixing ring and extends to the inner wall of the fixing ring, and the multiple oil outlets pass through the inner wall of the fixing ring and extend to the outer wall of the fixing ring, and are respectively inclined.
[0013] The above technical solution facilitates the replenishment of lubricant inside the fixing ring by the through-hole of the grease nipple, and the through-hole of the oil outlet satisfies the delivery of lubricant, achieving the lubrication effect on the contact surface between the wheel and the track. Furthermore, the inclined setting of the oil outlet guides the lubricant and ensures its smooth output.
[0014] Furthermore, each of the multiple oil outlets has an oil drip pipe at its center, the input end of each of the multiple oil outlets faces the inside of the fixed ring, and the output end faces the outside of the fixed ring. The input end of each of the multiple oil outlets has a larger opening, and the output end has a smaller opening.
[0015] The above technical solution guides the lubricating oil from inside the fixed ring through the drip pipe. The large opening at the input end allows the lubricating oil inside the fixed ring to quickly enter the drip pipe, while the small opening at the output end controls the flow rate of the lubricating oil, thus achieving quantitative delivery of lubricating oil and continuous delivery, thereby improving the lubrication effect.
[0016] Furthermore, a guide block is provided on the outer side of the center of one side wall of the fixed ring. The guide block is ring-shaped and the inner side wall is inclined.
[0017] The above technical solution utilizes a guide block to guide the discharged lubricating oil. Its ring shape prevents the lubricating oil from scattering to the outside upon initial discharge. Furthermore, the inclined inner wall allows the lubricating oil in the upper part of the guide block to naturally fall to the outer surface of the conical body during rotation, lubricated by the inclined surface and gravity. Meanwhile, the inclined design of the guide block blocks the lubricating oil in the lower part of the inner part, preventing it from falling off and being wasted, thus improving the lubricating oil delivery efficiency.
[0018] Furthermore, the tread surface is disposed inside the lubrication device;
[0019] The above technical solution, by setting the tread body inside the lubrication device, ensures that the lubricating oil is smoothly delivered to the outer surface of the tread body for lubrication.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when the track wheel of the anti-derailment crane lifting device is used, the conical body contacts the track, and its conical shape ensures that the wheel can automatically center itself when running on the track, reducing the risk of derailment caused by uneven track or external interference. Furthermore, if the wheel deviates from the center line of the track, it will automatically adjust back to the center position. The elastic block can absorb the vibration and impact during operation, improving the buffer performance of the wheel. When the wheel is subjected to external impact or vibration, the elastic block will undergo elastic deformation to absorb and disperse energy, reducing the impact on the overall structure, thereby improving its operational stability.
[0022] 2. In this utility model, the operator delivers lubricant to the inside of the fixing ring through the grease nipple, and then exports the lubricant to the outer surface of the tread through the oil outlet. This ensures lubrication of the wheel-rail contact surface, maintains good lubrication, reduces friction and wear, and extends the service life of the track wheel. The drip pipe guides the lubricant out of the fixing ring, allowing the lubricant inside the fixing ring to quickly enter the drip pipe and control the flow rate, thus achieving quantitative and continuous lubrication and improving the lubrication effect. Attached Figure Description
[0023] Figure 1 is a perspective view of the track wheel of a crane lifting device for preventing derailment proposed in this utility model;
[0024] Figure 2 is a perspective sectional view of the track wheel body of a crane lifting device for preventing derailment proposed in this utility model;
[0025] Figure 3 is a front sectional view of the track wheel of a crane lifting device for preventing derailment proposed in this utility model;
[0026] Figure 4 is an enlarged view of point A in Figure 3.
[0027] Legend:
[0028] 1. Wheel body; 2. Gear teeth; 3. Tread; 301. Conical body; 302. Elastic block; 4. Lubrication device; 401. Fixing ring; 402. Oil nozzle; 403. Oil outlet; 404. Oil drip pipe; 405. Guide block. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Referring to Figures 1-4, one embodiment of this utility model is provided: a track wheel for a crane lifting device to prevent derailment, comprising a wheel body 1 and multiple gear teeth 2. The multiple gear teeth 2 are arranged in a rectangular pattern at the center of the outer side of the wheel body 1. A tread body 3 is provided at the center of both sides of the wheel body 1, and a lubrication device 4 is provided at the outer side of the center of both sides of the wheel body 1. The tread body 3 enables the wheel body 1 to automatically center itself when running on the track, reducing the risk of derailment caused by uneven track or external interference, and automatically adjusting the wheel body 1 back to the center position if it deviates from the center line of the track.
[0031] The tread body 3 includes a conical body 301, which is located at the center of one side wall of the wheel body 1. An elastic block 302 is filled in the center of the conical body 301. The conical body 301 contacts the track, and its conical shape allows the wheel body 1 to automatically center itself when running on the track, reducing the risk of derailment caused by uneven track or external interference. It also allows the wheel body 1 to automatically adjust back to the center position if it deviates from the center line of the track. The elastic block 302 can absorb vibration and impact during operation, improving the buffering performance of the wheel body 1. When the wheel body 1 is subjected to external impact or vibration, the elastic block 302 will undergo elastic deformation to absorb and disperse energy, reducing the impact on the overall structure and thus improving its running stability.
[0032] The cone 301 is made of high-strength alloy steel, and the elastic block 302 is made of polyurethane. By using high-strength alloy steel for the cone 301, it has excellent mechanical properties and ensures that the cone 301 will not deform or be damaged when subjected to huge pressure and impact.
[0033] The lubrication device 4 includes a fixing ring 401, which is located on the outer side of the center of one side wall of the wheel body 1. An oil injection nozzle 402 is provided at the center of the upper end face of the fixing ring 401. Multiple oil outlets 403 are arranged in a circle near the upper center of one inner side wall of the fixing ring 401. The operator delivers lubricant into the fixing ring 401 through the oil injection nozzle 402 and then exports the lubricant to the outer surface of the tread body 3 through the oil outlets 403. This satisfies the lubrication needs of the contact surface between the wheel body 1 and the track, maintains a good lubrication state between the contact surface between the wheel body 1 and the track, reduces friction and wear, and extends the service life of the track wheel.
[0034] The output end of the grease nipple 402 passes through the outer wall of the fixing ring 401 and extends to the inner wall of the fixing ring 401. Multiple oil outlets 403 pass through the inner wall of the fixing ring 401 and extend to the outer wall of the fixing ring 401, and are respectively inclined. The passage of the grease nipple 402 facilitates the replenishment of lubricating fluid inside the fixing ring 401 by the staff. The passage of the oil outlets 403 satisfies the need for lubricating fluid delivery, achieving the lubrication effect on the contact surface between the wheel body 1 and the track. Furthermore, the inclined setting of the oil outlets 403 allows for the guidance of the lubricating fluid and ensures its smooth output.
[0035] Each of the multiple oil outlets 403 has a drip pipe 404 at its center. The input ends of the multiple oil outlets 403 face the inside of the fixed ring 401, and the output ends face the outside of the fixed ring 401. The input ends of the multiple oil outlets 403 have a larger opening, and the output ends have a smaller opening. The drip pipes 404 guide the lubricating oil to be delivered from inside the fixed ring 401. The larger opening at the input end allows the lubricating oil inside the fixed ring 401 to quickly enter the drip pipe 404. The smaller opening at the output end allows the flow rate of the lubricating oil to be controlled, thus satisfying the requirement of quantitative delivery of lubricating oil and achieving continuous delivery of lubricating oil, thereby improving the lubrication effect.
[0036] A guide block 405 is provided on the outer side of the center of one side wall of the fixed ring 401. The guide block 405 is ring-shaped and the inner side wall is inclined. The guide block 405 is used to guide the output lubricating oil. Its ring shape prevents the lubricating oil from scattering to the outside when it is first output. The inclined inner side wall allows the lubricating oil in the upper part of the guide block 405 to fall naturally to the outer surface of the cone 301 for lubrication during the rotation of the wheel 1. The lubricating oil in the lower part of the guide block 405 is blocked by the inclined design of the guide block 405 to prevent it from falling off and being wasted, thereby improving the delivery effect of the lubricating oil.
[0037] The tread body 3 is located inside the lubrication device 4. By placing the tread body 3 inside the lubrication device 4, the lubricating oil can be smoothly delivered to the outer surface of the tread body 3 for lubrication.
[0038] Working principle: When the track wheel of the anti-derailment crane lifting device is in use, the conical body 301 contacts the track, and its conical shape ensures that the wheel 1 can automatically center itself when running on the track, reducing the risk of derailment caused by uneven track or external interference. Furthermore, if the wheel 1 deviates from the center line of the track, it will automatically adjust back to the center position. The elastic block 302 can absorb the vibration and impact during operation, improving the buffer performance of the wheel 1. When the wheel 1 is subjected to external impact or vibration, the elastic block 302 will undergo elastic deformation to absorb and disperse energy, reducing the impact on the overall structure, thereby improving its operational stability.
[0039] Workers deliver lubricant to the inside of the fixing ring 401 through the grease nipple 402, and then export the lubricant to the outer surface of the tread body 3 through the oil outlet 403. This ensures lubrication of the contact surface between the wheel body 1 and the track, maintains good lubrication between the wheel body 1 and the track, reduces friction and wear, and extends the service life of the track wheel. The oil drip pipe 404 guides the lubricant out of the fixing ring 401, allowing the lubricant inside the fixing ring 401 to quickly enter the oil drip pipe 404. It also controls the flow rate of the lubricant, ensuring quantitative delivery and continuous delivery, thereby improving the lubrication effect.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A track wheel for a crane lifting device to prevent derailment, comprising a wheel body (1) and a plurality of wheel teeth (2), wherein the plurality of wheel teeth (2) are arranged in a rectangular pattern at the center of the outer side of the wheel body (1), characterized in that: The wheel body (1) is provided with a tread body (3) at the center of both sides, and a lubrication device (4) is provided at the outer side of the center of both sides of the wheel body (1); the tread body (3) includes a cone (301), the cone (301) is located at the center of one side wall of the wheel body (1), and an elastic block (302) is filled in the center of the cone (301).
2. The track wheel of the anti-derailment crane lifting device according to claim 1, characterized in that: The cone (301) is made of high-strength alloy steel, and the elastic block (302) is made of polyurethane.
3. The track wheel of the anti-derailment crane lifting device according to claim 1, characterized in that: The lubrication device (4) includes a fixing ring (401), which is located on the outer side of the center of one side wall of the wheel body (1). An oil injection nozzle (402) is provided at the center of the upper end face of the fixing ring (401), and multiple oil outlets (403) are arranged in a circular pattern on the upper side of the center of one inner side wall of the fixing ring (401).
4. The track wheel of the anti-derailment crane lifting device according to claim 3, characterized in that: The output end of the oil nozzle (402) passes through the outer wall of the fixing ring (401) and extends to the inner wall of the fixing ring (401). The multiple oil outlets (403) pass through one inner wall of the fixing ring (401) and extend to the outer wall of the fixing ring (401), and are respectively inclined.
5. The track wheel of the anti-derailment crane lifting device according to claim 3, characterized in that: Each of the multiple oil outlets (403) has an oil drip tube (404) at its center. The input end of each of the multiple oil outlets (403) faces the inside of the fixing ring (401), and the output end faces the outside of the fixing ring (401). The input end of each of the multiple oil outlets (403) has a larger opening, and the output end has a smaller opening.
6. The track wheel of the anti-derailment crane lifting device according to claim 3, characterized in that: A guide block (405) is provided on the outer side of the center of one side wall of the fixed ring (401). The guide block (405) is ring-shaped and the inner side wall is inclined.
7. The track wheel of the anti-derailment crane lifting device according to claim 1, characterized in that: The tread body (3) is located inside the lubrication device (4).